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/********************* */
/*! \file cvc_printer.cpp
** \verbatim
** Original author: mdeters
** Major contributors: none
** Minor contributors (to current version): none
** This file is part of the CVC4 prototype.
** Copyright (c) 2009, 2010, 2011 The Analysis of Computer Systems Group (ACSys)
** Courant Institute of Mathematical Sciences
** New York University
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief The pretty-printer interface for the CVC output language
**
** The pretty-printer interface for the CVC output language.
**/
#include "printer/cvc/cvc_printer.h"
#include "util/language.h"
#include <iostream>
#include <algorithm>
#include <iterator>
using namespace std;
namespace CVC4 {
namespace printer {
namespace cvc {
void CvcPrinter::toStream(std::ostream& out, TNode n,
int toDepth, bool types) const {
// null
if(n.getKind() == kind::NULL_EXPR) {
out << "NULL";
return;
}
// variable
if(n.getMetaKind() == kind::metakind::VARIABLE) {
string s;
if(n.getAttribute(expr::VarNameAttr(), s)) {
out << s;
} else {
if(n.getKind() == kind::VARIABLE) {
out << "var_";
} else {
out << n.getKind() << '_';
}
out << n.getId();
}
if(types) {
// print the whole type, but not *its* type
out << ":";
n.getType().toStream(out, -1, false, language::output::LANG_CVC4);
}
return;
}
// constant
if(n.getMetaKind() == kind::metakind::CONSTANT) {
switch(n.getKind()) {
case kind::BITVECTOR_TYPE:
out << "BITVECTOR(" << n.getConst<BitVectorSize>().size << ")";
break;
case kind::CONST_BITVECTOR: {
const BitVector& bv = n.getConst<BitVector>();
const Integer& x = bv.getValue();
out << "0bin";
unsigned n = bv.getSize();
while(n-- > 0) {
out << (x.testBit(n) ? '1' : '0');
}
break;
}
case kind::CONST_BOOLEAN:
// the default would print "1" or "0" for bool, that's not correct
// for our purposes
out << (n.getConst<bool>() ? "TRUE" : "FALSE");
break;
case kind::CONST_RATIONAL: {
const Rational& rat = n.getConst<Rational>();
out << '(' << rat.getNumerator() << '/' << rat.getDenominator() << ')';
break;
}
case kind::TYPE_CONSTANT:
switch(TypeConstant tc = n.getConst<TypeConstant>()) {
case REAL_TYPE:
out << "REAL";
break;
case INTEGER_TYPE:
out << "INT";
break;
case BOOLEAN_TYPE:
out << "BOOLEAN";
break;
case KIND_TYPE:
out << "TYPE";
break;
default:
Unhandled(tc);
}
break;
case kind::BUILTIN:
switch(Kind k = n.getConst<Kind>()) {
case kind::EQUAL: out << '='; break;
case kind::PLUS: out << '+'; break;
case kind::MULT: out << '*'; break;
case kind::MINUS:
case kind::UMINUS: out << '-'; break;
case kind::DIVISION: out << '/'; break;
case kind::LT: out << '<'; break;
case kind::LEQ: out << "<="; break;
case kind::GT: out << '>'; break;
case kind::GEQ: out << ">="; break;
case kind::IMPLIES: out << "=>"; break;
case kind::IFF: out << "<=>"; break;
// names are slightly different than the kind
case kind::BITVECTOR_PLUS: out << "BVPLUS"; break;
case kind::BITVECTOR_SUB: out << "BVSUB"; break;
case kind::BITVECTOR_XOR: out << "BVXOR"; break;
case kind::BITVECTOR_NAND: out << "BVNAND"; break;
case kind::BITVECTOR_NOR: out << "BVNOR"; break;
case kind::BITVECTOR_XNOR: out << "BVXNOR"; break;
case kind::BITVECTOR_COMP: out << "BVCOMP"; break;
case kind::BITVECTOR_MULT: out << "BVMULT"; break;
case kind::BITVECTOR_UDIV: out << "BVUDIV"; break;
case kind::BITVECTOR_UREM: out << "BVUREM"; break;
case kind::BITVECTOR_SDIV: out << "BVSDIV"; break;
case kind::BITVECTOR_SREM: out << "BVSREM"; break;
case kind::BITVECTOR_SMOD: out << "BVSMOD"; break;
case kind::BITVECTOR_SHL: out << "BVSHL"; break;
case kind::BITVECTOR_LSHR: out << "BVLSHR"; break;
case kind::BITVECTOR_ASHR: out << "BVASHR"; break;
case kind::BITVECTOR_ULT: out << "BVLT"; break;
case kind::BITVECTOR_ULE: out << "BVLE"; break;
case kind::BITVECTOR_UGT: out << "BVGT"; break;
case kind::BITVECTOR_UGE: out << "BVGE"; break;
case kind::BITVECTOR_SLT: out << "BVSLT"; break;
case kind::BITVECTOR_SLE: out << "BVSLE"; break;
case kind::BITVECTOR_SGT: out << "BVSGT"; break;
case kind::BITVECTOR_SGE: out << "BVSGE"; break;
case kind::BITVECTOR_NEG: out << "BVUMINUS"; break;
case kind::BITVECTOR_NOT: out << "~"; break;
case kind::BITVECTOR_AND: out << "&"; break;
case kind::BITVECTOR_OR: out << "|"; break;
case kind::BITVECTOR_CONCAT: out << "@"; break;
default:
out << k;
}
break;
default:
// fall back on whatever operator<< does on underlying type; we
// might luck out and be SMT-LIB v2 compliant
kind::metakind::NodeValueConstPrinter::toStream(out, n);
}
return;
} else if(n.getMetaKind() == kind::metakind::PARAMETERIZED) {
switch(n.getKind()) {
case kind::BITVECTOR_EXTRACT:
out << n[0] << n.getOperator().getConst<BitVectorExtract>();
break;
case kind::BITVECTOR_REPEAT:
out << "BVREPEAT(" << n[0] << "," << n.getOperator() << ')';
break;
case kind::BITVECTOR_ZERO_EXTEND:
out << "BVZEROEXTEND(" << n[0] << "," << n.getOperator() << ')';
break;
case kind::BITVECTOR_SIGN_EXTEND:
out << "SX(" << n[0] << "," << n.getOperator() << ')';
break;
case kind::BITVECTOR_ROTATE_LEFT:
out << "BVROTL(" << n[0] << "," << n.getOperator() << ')';
break;
case kind::BITVECTOR_ROTATE_RIGHT:
out << "BVROTR(" << n[0] << "," << n.getOperator() << ')';
break;
default:
out << n.getOperator();
if(n.getNumChildren() > 0) {
out << '(';
if(n.getNumChildren() > 1) {
copy(n.begin(), n.end() - 1, ostream_iterator<TNode>(out, ", "));
}
out << n[n.getNumChildren() - 1] << ')';
}
}
return;
} else if(n.getMetaKind() == kind::metakind::OPERATOR) {
switch(Kind k = n.getKind()) {
case kind::FUNCTION_TYPE:
case kind::CONSTRUCTOR_TYPE:
case kind::SELECTOR_TYPE:
if(n.getNumChildren() > 2) {
out << '(';
for(unsigned i = 0; i < n.getNumChildren() - 2; ++i) {
out << n[i] << ", ";
}
out << n[n.getNumChildren() - 2]
<< ") -> " << n[n.getNumChildren() - 1];
} else if(n.getNumChildren() == 2) {
out << n[0] << " -> " << n[1];
} else {
Assert(n.getNumChildren() == 1);
out << n[0];
}
break;
case kind::TESTER_TYPE:
out << n[0] << " -> BOOLEAN";
break;
case kind::ARRAY_TYPE:
out << "ARRAY " << n[0] << " OF " << n[1];
break;
case kind::SELECT:
out << n[0] << '[' << n[1] << ']';
break;
case kind::STORE:
out << n[0] << " WITH [" << n[1] << "] = " << n[2];
break;
case kind::TUPLE_TYPE:
out << '[';
copy(n.begin(), n.end() - 1, ostream_iterator<TNode>(out, ","));
out << n[n.getNumChildren() - 1];
out << ']';
break;
case kind::TUPLE:
out << "( ";
copy(n.begin(), n.end() - 1, ostream_iterator<TNode>(out, ", "));
out << n[n.getNumChildren() - 1];
out << " )";
break;
case kind::ITE:
out << "IF " << n[0] << " THEN " << n[1] << " ELSE " << n[2];
break;
// these are prefix and have an extra size 'k' as first argument
case kind::BITVECTOR_PLUS:
case kind::BITVECTOR_SUB:
case kind::BITVECTOR_MULT:
out << n.getOperator() << '(' << n.getType().getBitVectorSize() << ','
<< n[0] << ',' << n[1] << ')';
break;
// these are prefix
case kind::BITVECTOR_XOR:
case kind::BITVECTOR_NAND:
case kind::BITVECTOR_NOR:
case kind::BITVECTOR_XNOR:
case kind::BITVECTOR_COMP:
case kind::BITVECTOR_UDIV:
case kind::BITVECTOR_UREM:
case kind::BITVECTOR_SDIV:
case kind::BITVECTOR_SREM:
case kind::BITVECTOR_SMOD:
case kind::BITVECTOR_SHL:
case kind::BITVECTOR_LSHR:
case kind::BITVECTOR_ASHR:
case kind::BITVECTOR_ULT:
case kind::BITVECTOR_ULE:
case kind::BITVECTOR_UGT:
case kind::BITVECTOR_UGE:
case kind::BITVECTOR_SLT:
case kind::BITVECTOR_SLE:
case kind::BITVECTOR_SGT:
case kind::BITVECTOR_SGE:
out << n.getOperator() << '(' << n[0] << ',' << n[1] << ')';
break;
// N-ary infix
case kind::BITVECTOR_CONCAT:
out << '(';
for(unsigned i = 0; i < n.getNumChildren() - 1; ++i) {
cout << n[i] << ' ' << n.getOperator();
}
out << n[n.getNumChildren() - 1] << ')';
default:
if(k == kind::NOT && n[0].getKind() == kind::EQUAL) {
// collapse NOT-over-EQUAL
out << n[0][0] << " /= " << n[0][1];
} else if(n.getNumChildren() == 2) {
// infix binary operator
out << '(' << n[0] << ' ' << n.getOperator() << ' ' << n[1] << ')';
} else if(n.getKind() == kind::AND ||
n.getKind() == kind::OR) {
// infix N-ary operator
TNode::iterator i = n.begin();
out << '(' << *i++;
while(i != n.end()) {
out << ' ' << n.getOperator() << ' ' << *i++;
}
out << ')';
} else if(k == kind::BITVECTOR_NOT) {
// precedence on ~ is a little unexpected; add parens
out << "(~(" << n[0] << "))";
} else {
// prefix N-ary operator for N != 2
if(n.getNumChildren() == 0) {
// no parens or spaces
out << n.getOperator();
} else {
out << '(' << n.getOperator() << ' ';
if(n.getNumChildren() > 1) {
copy(n.begin(), n.end() - 1, ostream_iterator<TNode>(out, " "));
}
out << n[n.getNumChildren() - 1] << ')';
}
}
}
return;
}
Unhandled();
}/* CvcPrinter::toStream() */
}/* CVC4::printer::cvc namespace */
}/* CVC4::printer namespace */
}/* CVC4 namespace */
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